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Michael Chapman
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Michael Chapman

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David A. Wheeler has written a nicely detailed account of the recent Shellshock vulnerability. It's astonishing to think it had been lurking around since 1989.

http://www.dwheeler.com/essays/shellshock.html
Information about shellshock
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Michael Chapman

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Another on in the theme of "great low-level software hacks".

This sentence is the best:
  The sax instruction is a mix of sta and stx; it tries to write the contents of both A and X to memory, and due to the NMOS process used to manufacture the 6502, zeroes are stronger than ones, so bus contentions resolve into bitwise-and operations.

Relying on the processor manufacturing method to create custom op codes and then exploit them in very useful ways is amazing stuff.
GCR decoding on the fly. The little routine presented here is, with all due humbleness, hands down the best code I ever wrote. It is esoteric and might not appeal to the masses, and it certainly has n...
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Michael Chapman

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This site has become my new time sink.

http://yarchive.net/comp/
Computer Architecture. The prospects for 128 bit processors (John R. Mashey) [8913 bytes] 64 bit processors: history and rationale (John R. Mashey) [32401 bytes] AMD64 (Linus Torvalds; Terje Mathisen) [12514 bytes] Asynchronous logic (Mitch Alsup) [3766 bytes] Atomic transactions (Mitch Alsup; ...
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A nice find indeed, thanks!
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Michael Chapman

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Hm, and if they do spin those checkboxes off into add-ons, I'd want the add-ons shipped with the browser by default (albeit disabled initially). 
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Michael Chapman

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So, uh...  I have a confession to make.

I may have rewritten Protocol Buffers.

Again.

And it's infinity times faster.
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+Lennart Poettering's talk about the systemd Journal, from devconf.cz. Starting at 28:40 Lennart demos practically how useful "journalctl" can be in an administrator's day-to-day work. Enjoy!
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